4241 Homocysteine

Specimen Type Specimen Stability Reference Range
Preferred: Whole blood-Lavender top tube; Fasting
Alternate: Serum-SST; Fasting
7 days 2-8° C 3.7-13.9 umol/L

Specimen Requirements

Preferred amount: 1.0 mL Plasma or Serum
Minimum amount: 0.5 mL Plasma or Serum

Method

Immunochemiluminometric(ICMA)

Schedule

Mon-Sat

Turn-Around Time

24hrs; Also offered STAT at an additional charge

Instructions/Notes

Centrifuge required?: Yes. Centrifuge and separate from red cells within 1 hour of collection
Fasting required?: Yes
Special Instructions: Samples should be stored on ice between the time of sampling and centrifugation.

Clinical Utility

To screen patients who may be at risk for thrombosis, heart disease and stroke.

CPT Codes

83090

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